0_0_39474867_25734.cpp: In function 'int main()':
0_0_39474867_25734.cpp:4:13: error: expected primary-expression before '=' token
4 | #define M_PI=3.14159265453
| ^
0_0_39474867_25734.cpp:11:23: note: in expansion of macro 'M_PI'
11 | double jiao = x * M_PI /180;
| ^~~~
|